Improvement in mounted horse-fgwer



' Woodbury horse-power.

MASSENA B. nRsKINn'oF enorun'wrsoousm.

Lam Patent No. 107,237, ma september 1e, 1870.

-IMPR'ovLMENT IN MoUNTnD 'House-POWER.

The Schedule refe! red to in these Letters Patent and. making part of Ithe same.

To all whom it may concern i Be it' known that I, MA'ssnNA'B. Erasmus, of

the city and county'of Racine, in the State of Wiscousin, have invented a new and useful Improvement of the Woodbury or Mounted Horse-Power;v land l do hereby declare that the following is afull, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making a part of this specification, of' whichj Figure l is a'plan; s

Figure 2, a'perpendic'ular section;

Figure 3, a side elevation;

Figure 4, a section of theaxle .Figure 5, the outside view of the upright part of the axle; y

Figure 6, the inside view ofthe upright part of the axlegand Figure 7, the lower and horizontal parts ofthe axle.

My claim is for an improvement.

I donot claim tobe the original inventor of the My improvement consists in the means of strengthening the horse-power, and particularly the axles, and thus rendering the machinelnore'eihcient and useful.

My invention consists- First, inthe shape and form ofthe axles as now manufactured by me. .Asoriginally made, the axles did not, permit the wheels to lstand perpendicular, whereas,A the form I give to them does. The wheels are, therefore, not liable to .h reak, as ,they were with the axle in theforni given to it bythe inventor of the Woodbury power.

Secondly', in greatly strengthening the axle .by the iron support, marked A, in iig. 6, thus eiiectually preventing it-fron`1 splitting, to which, before my invention, it was liable.

Thirdly, in the use and arrangement of the wroughtiron eye-bolt, marked B, in iig. 6, by means of which the pins, which connect the V-pieces to the axles, are greatly strengthened.

I Fourthly, in so enlarging and shaping that portion of the axle outside of the bolt-holes, marked E, in iig.- 5, as to permit the use of three bolts instead of two, one

'each side of the axlefand, further, to permit them to be inserted ont of line, thus giving additional strength to the axle and tothe whole power.

Fifthly, in the use and arrangementv 4ofthe truss- K rod, marked 0 in g. 2, and marked YD-in tig.4, which connects the two axles, and, having nuts on the ends,

holds the wheelsto their places, eqnalizes thestrain upon the axles, and adds much to the strength of the corner-pieces, marked Fin iig. 1, and thusremoves,

'to a very great degree, the danger of breaking, to

'which the machine, as originally patented by the inventor and made by me, was liable.

Sixthly, in giving greater strength to that portion` of the axle marked G in figs. 5 and 6, bythe convexity of the outside on the horizontal line, and the concavity of the same on the perpendicular line.

Vhat I claim as my improvement, and desire to secure by Letters' Patent, visl 1. The axle, made in the form shown and described, and provided with the strengthening bar A, as and -for the purpose speciled.

, 2. The wrought-iron eye-bolt B, when used inthe connection and for the purpose speciiedand shown.

3. *The enlargement or swell E of the ange of the' axle, to permit of the said ange being perforated by the three holes out 'of line with each other, for the purpose specified.

4. -The truss-rod O connecting the two axles, sub' stantially as described. v A

` 4M ASSENA B'. ERSKINE.

Witnesses: A

JNO. G. MCMYNN, E. 1t. GRIFFITH. 

